Microsoft has issued an out-of-band patch fixing an issue that caused server or client authentication failures on domain controllers after installing the 10 May 2022 Patch Tuesday updates.
The Patch Tuesday issue was identified by users shortly after the monthly update was issued, and affected services including Network Policy Server (NPS), Routing and Remote Access Service (RRAS), Radius, Extensible Authentication Protocol (EAP) and Protected Extensible Authentication Protocol (PEAP).
The problem related to how the domain controller handled the mapping of certificates to machine accounts. Note that it only affected servers used as domain controllers, not client Windows devices or Windows Servers that are not used as domain controllers.
